Apparatus for consuming smoke in furnaces.



No. 687,333. Patented Nov. 26, I90l.

s; REBOUL. APPARATUS FOR CU NSUMING SMOKE IN FURNACES.

(Application filed July 10, 1900.) (No Model.) .2 $haets-Sheat I.

ma NORRIS PETERS c0. PHOTu-LITMO.. WASHINGTON. n. u.

Patented Nov. 26, I901. S. REBOUL. APPARATUS FOR OONSUMING SMOKE INFUBNAGES.

(No Model.)

(Application filed July 10, 1900.)

2 Shoe ts$heat 2.

1k: unnms Firms co. PNOIO-LITHQ, WASHINGTON, a, c.

UNITED STATES PATENT OFFICE.

SALVADOR REBOUL, OF PARIS, FRANCE.

APPARATUS FOR CONSUMING SMOKE IN FURNACES.

SPECIFICATION forming part of Letters Patent No. 687,333, dated November 26, 1901.

A Application filed July 10, 1900. Serial No. 23,144. (No model.)

To all whom it may concern:

Be it known that I, SALYADOR REBoUL, a citizen of the French Republic, residing at Paris, France, have invented certain new and useful Improvements in Apparatus for Consuming Smoke in Furnaces, of which the following is a full,'clear, and exact description.

The present invention has for its object a new system of apparatus for consuming smoke in furnaces.

The accompanying drawings are in illustration of the invention.

Figure 1 is a plan; Fig. 2, atransverse section through A B, Fig. 1; Fig. 3, a front view. Fig. 4 illustrates the application of the system to a boiler of the Thomas-Laurens system. Fig. oisatransverse section through 0 D E F, Fig. 4. Fig. 6 is a modification of Fig. 2.

As shown in the drawings, the improved apparatus consists, first, of a chamber a somewhat resembling in shape the baskets ordinarily carried on the back, but inverted and having the bottom and sides curved or arched; second, of an arched plate I) I), placed a little in advance of the chamber and connected to the latter by stays c c c, and, third, of ahood it intended to direct and abate the smoke and hot gases.

The space (1 existing between the chamber and the arched plate forms a long narrow arched opening, the section of which may vary according to the class of boiler to which the apparatus is applied. A narrow opening, the size of which can be regulated by hand, should be made in the fire-door or in the sides of the furnace in order to allow the natural admission above the layer of fuel in the furnace of a sufficient quantity of air to produce combustion. In locomotive and horizontal tubular boilers through which the flame passes directly the sides of the arched plate I) b are extended to the lateral walls of the furnace and the upper part of the arch rises to the roof of the furnace, while the hood may be omitted.

In boilers of the kind known as Thomas- Laurens, having concentric furnaces, the chamber a should havethe form of a cap, and the arched plate I) I) should be closed at its lower part, and have therefore the shape of a ring.

The base of the apparatus follows the shape of the part on which it rests. This apparatus is placed, first, on the bottom of locomotive-boilers or of horizontal tubular boilers, in which the flame acts directly; second, directly at the back of flue-boilers, tubular or not, or between the end of the internal flue and the back of the boiler; but inboth cases the novel apparatus should have infront of it a partition at the base of which the front part of the hood or truncated cone is isfitted; third, in the combustion-chamber of horizontal boilers having return-tubes, or of the kind known as Thomas -Laurens, (see Figs. 4 and 5 of the accompanying drawings fourth, above the set of tubes in multitubular boilers, in boilers of theThomas-Laurens type and in flue-boilers the apparatus may be completed by a plate 1 (curved or not) placed in the interior of the apparatus. (See Fig. 6.) This plate facilitates the movement of the smoke and hot gases and increases, moreover, the highly-heated surface of the apparatus. Finally, in these boilers, the hood may have the form of a truncated cone. (See giigs. 4 and 5 0f the accompanying drawlngs.

Action of the apparatus: Oarbureted 11y drogen gases produced by the distillation of the fuel in the furnace and which are unconsumed reach the apparatus by the opening e of the arched plate at the same time as the admitted air which has become heated by its passage by radiation and combustion. By means of the draft of the chimney and also by the shape of the improved apparatus, the walls of which are constantly under the action of the hot gases and acquire a high temperature, these carbureted hydrogen gases and the hot air admitted first contract, then expand, become thoroughly mixed, and again contract to escape by the opening (1. The intimate combination under like conditions of the combustible (carbureted hydrogen gases) Icio &c., the chamber having its walls constantly reheated, preventing not only the gases entering from the fireplace and the air admitted through an opening in the front of the fireplace from becoming cold, but by its arrangement allowing besides the gaseous mixture to be first contracted by the hood or truncated cone 70, then expanded, then intimately mixed, and finally burned by reason of the high temperature resulting from the contact of the gaseous mixture with the highly-heated parts of the apparatus.

It is understood that the shape, details, subsidiary parts, materials, and dimensions of the apparatus by which my process is carried out may be varied according to the types of boilers to which it is applied without interfering with the principles of my invention.

What I claim is- 1. An attachment for furnaces, fireplaces and the like adapted to be constantly under the action of the hot gases therein and consisting of a chamber, an arched plate held at a distance from the mouth of said chamber and a hood traversing the space between said plate and the chamber, substantially as described.

2. An attachment for furnaces, fireplaces and the like, comprising a chamber, an arched plate held slightly at a distance from and in advance of said chamber and a hood in the form of a truncated cone traversing the space between said plate and chamber.

3. A device for the purpose described adapted to be disposed in position to be constantly under the action of the hot gases comprising a chamber having curved sides, an arched plate held at a distance from and in advance of said chamber with an intervening space and a hood in the form of a truncated conical cone extending between the plate and into said chamber, substantially as described.

4. A device for the purpose described adapted to be disposed in position to be constantly under the action of the hot gases comprising a chamber having curved sides, an arched plate held at a distance from and in advance of said chamber with an intervening space and a hood in the form of a truncated conical cone extending between the plate and into said chamber, said chamber having a curved bottom.

In testimony that I claim the foregoing I have hereunto set my hand this 27th day of June, 1900.

SALVADOR REBOUL.

Witnesses:

EMILE CONOHOUND, EDWARD P. MACLEAN. 

